@inproceedings{ce16c28c9d9649dbb8b505b6ca92acd4,
title = "Multiterminal source-channel communication under orthogonal multiple access",
abstract = "We consider the problem of transmitting a number of distributed sources through an orthogonal multiple access channel to a common destination. We characterize the optimal tradeoff between the transmission cost and the distortion as measured against individual sources. The approach consists of two steps: (1) a multiple- letter characterization of the rate-distortion region for the multiterminal source coding; (2) a source-channel separation theorem ensuring that all achievable cost- distortion pairs can be obtained by combining the rate-distortion region and the orthogonal multiple access channel capacity region. As a corollary, we determine the optimal power-distortion tradeoff in a quadratic Gaussian sensor network under orthogonal multiple access, and show that separate source-channel coding strictly outperforms the uncoded (amplify-forward) transmission, and is in fact optimal in this case. This result is in sharp contrast to the case of non-orthogonal multiple access for which separate source-channel coding is not only suboptimal but also strictly inferior to uncoded transmission [12].",
author = "Xiao, {Jin Jun} and Luo, {Zhi Quan}",
year = "2005",
month = jan,
day = "1",
language = "English (US)",
series = "43rd Annual Allerton Conference on Communication, Control and Computing 2005",
publisher = "University of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering",
pages = "1247--1256",
booktitle = "43rd Annual Allerton Conference on Communication, Control and Computing 2005",
note = "43rd Annual Allerton Conference on Communication, Control and Computing 2005 ; Conference date: 28-09-2005 Through 30-09-2005",
}